Roomaji to Godan-Katsuyou-Doushi

  Hebon-shiki no Hihan-Zairyou to shite, Doushi no Katsuyou-Hyou ga Fukuzatsu da to iu no ga ari-masu.

Yondan-Katsuyou (Bungo-Bun)*1

B G H K M R S T
tobu kogu ahu aku amu uru osu utu
Mizen -a tob- kog- ah- ak- am- ur- os- ut-
Renqyou -i tob- kog- ah- ak- am- ur- os- ut-
Shuushi -u tob- kog- ah- ak- am- ur- os- ut-
Rentai -u tob- kog- ah- ak- am- ur- os- ut-
Izen -e tob- kog- ah- ak- am- ur- os- ut-
Meirei -e tob- kog- ah- ak- am- ur- os- ut-

  Bungo-bun de wa, Subete no Katsuyou-Kei de onaji katachi wo tamotte i-masu.

Godan-Katsuyou (Kougo-Bun)*2

B G K M N R S T W
tobu kogu aku amu shinu uru osu utsu au
Mizen -a tob- kog- ak- am- shin- ur- os- ut- aw-
Renqyou -i tob- kog- ak- am- shin- ur- osh- uch- a-
Shuushi -u tob- kog- ak- am- shin- ur- os- uts- a-
Rentai -u tob- kog- ak- am- shin- ur- os- uts- a-
Katei -e tob- kog- ak- am- shin- ur- os- ut- a-
Meirei -e tob- kog- ak- am- shin- ur- os- ut- a-
Mizen -o tob- kog- ak- am- shin- ur- os- ut- a-
Renqyou -t ai- ut- oshi- ut- at-
Renqyou -d ton- koi- an- shin-

  Kougo-bun de wa, SA-gyou, TA-gyou, WA-gyou de, onaji katachi wo tamotte i-masen. Kunrei Dai 1-hyou wo tsukaeba, SA-gyou, TA-gyou ga onaji katachi wo tamote, WA-gyou nomi chigau katachi wo mochi-masu. Tada, kono chigai de Bunpou no Setsumei ga Fukuzatsu ni naru ka to iwarereba, sou tomo ie-masen. SA-gyou no baai, "osh-" to "os-" wa nite i-masu shi, TA-gyou no baai mo, "uts-" to "ut-" wa nite i-masu. Yuiitsu, "uch-" no katachi de Setsumei ga Hitsuyou desu.
  Sore ni kurabete, Renqyou-Kei de "-ta/-da" ni Setsuzoku suru baai ni arawareru Onbin-Kei wa, Roomaji wo motte shite mo, Kunrei Dai 1-hyou, Hebon-shiki to Kankei-naku, Setsumei ni Kurou suru koto ni nari-masu.